At the end of this month, I'll be meeting a penpal in London. She is taking the bus from Cardiff to Victoria coach station. We would like to go somewhere for afternoon tea, not too far from the station. Last year we went to the English Rose Tea Room, which was very nice. Had a heckuva time finding it though--asked 3 or 4 people and used Google Maps--still wandered in circles for at least a half hour. I'm not opposed to a short Tube trip if the tea is worth it but after she's been on a bus all morning, I wouldn't want to ask her to take yet another ride. Thanks!
EDIT: The budget I'm looking for is about 40 pounds per person. Thank you!